[Mgs] Timing discussion

[Richard Lindsay]

Exactly. If we learn anything from being lifelong automobile enthusiasts
its that EVERYTHING on a car is a compromise!

On Wed, Apr 24, 2019, 1:46 PM mghirsch at netzero.net <mghirsch at netzero.net>
wrote:

> You also have to realize that factory specs are a compromise.  They are
> trying to balance performance, mileage engine life and in modern cars,
> emissions.  You can tune it for, let's say  mileage, but performance will
> suffer.  Conversely, if you tune it for performance mileage will suffer.
> Tune it the way you want it to run.
>
> ---------- Original Message ----------
> From: Richard Lindsay via Mgs <mgs at autox.team.net>
> To: Charley38 at twc.com
> Cc: "mgs at autox.team.net List" <mgs at autox.team.net>
> Subject: Re: [Mgs] Timing discussion
> Date: Wed, 24 Apr 2019 10:26:49 -0500
>
> Awesome Charley. No factory manual is going to adequately prescribe the
> right answer for your FrankenMGB. You must love engine building as much as
> do I.
>
> R
>
> On Wed, Apr 24, 2019, 8:41 AM Charley Robinson <Charley38 at twc.com> wrote:
>
>> That comment,  "Just advance the timing until you notice preignition."
>> has to be taken in the context of how much advance can you dial in
>> before it starts to ping under load.   It's a rough attempt to dial in a
>> particular engine/fuel combination.  I think most of us know the trial
>> and error method.
>>
>> To answer your question: My B engine is set at ~12* advance @ 850 - 900
>> RPM with the vac disconnected.  It pulls well through the midrange  set
>> that way.  But my engine kind of "parts is parts." It's a 18V block with
>> GH innards (flat -top pistons).  All this topped by a pre-smog head and
>> HS-4 carbs.  So I had to tweak it to get it to run the way I like it on
>> mid-grade gas.
>>
>> CR
>
>
>
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